Signal device for film-magazines.



N. POWER.

SIGNM DEVICE FOR FILM MAGAZINES APPLICATION FILED FEBIFI I914- Patented Dec. 12, 1916.

' 5] vwa M 0 2 UNITED STATES PATENT orrios.

IRLSHGLA$ POWER, OF BROOKLYN, NEW YORK, ASSIGNQR T NICHOLAS, POW ER COMPANY, OF NEW YORK, N. Y., A CORPORATION OF DELAW' SIGNAL DEVICE FOR FILM-MAGAZINES.

Application filed February 7, 1914.

To all? whom it may concern.

Be known that I, NICHOLAS Pownn, a cztize P the United States, and a resident Brooklyn, in the county of Kings and. State 03?. New York, have invented certain indicators for film magazines for moving picture machines and has for its object to provide indicator which is especially adapted. to the lower or receiving magae. moving picture muchine for the purpose of indicating "whether or not the filmy, is being properly wound on the film reel.

A further ohject of the invention is to film a signal will be sounded calling the operatorsattention so that he may stop the machine, or otherwise remedy the fault before serious damage can occur.

A further object of the invention is to provide an indicator of'this class which will not lessen the fireproofing qualities of the magazine and which may be applied to machines alr ady in. use without modification of the eXis g magazine structure.-

In the accompanying drawings, I have illustrated a preiferreekcmhodiment of my invention, and in said drawings, Figure l is a general view of a moving picture machine perticularly the driving mechanism for the receiving reel; Fig. 2 is a perspective View of the receiving magazine detached from the. machine with its door open to show the, construction whereby the indicator is driven from the reel shaft; Fig. 3 is an en larged detail view of the indicator showing a portion of the outer face of the magazine door; Fig. 4: is a vertical section through the indicator and a portion of the magazine.

Referring now to the drawings, in which like characters indicate like parts throughout the several views, the nnmeral 1 indicates the projecting mechanism or head of the machine, which may be of any preferred construction and. which embodies a continuously rotating driving shaft here shown as the vertical shaft Driven from this shaft by means of suitable gearing is the pulley wheel 3 whichdrives through the belt 4 the driving pulley 5 of the receiving Specification of Letters Patent.

Patented Dec. '12, 92 .6.

Serial No. 817,201.

reel 6 for the film. The mounted. on the driving shull; (n ley 5 within. the lower magazine usual manner and. is held on the means 01": the pivoted dog Snicimt 1 end of the shaft so to turi'ied to radial. position shown in 2 and 41- when the reel is on the shaft. As the reel increa in size the film will be woxnid more rapiclv and break the film unless means are pro vided to permit the helt'to slip and relievethe tension on the film. For this purpo the driving belt 4E is of alength to be Quite slack when free and is held in driving en gagement with the pulley by means ot a belt-tightening roller 9 mounted in the end of an arm pivoted on the reel shaft and held. against the belt by a spring 10. The helt tightener is controlled by an arm 11 within the magazine which carries a guide spool for the film and is connected by a suitable crank and lever mechanism with the arm of the belt tightening pulley. The film is trained over the spool in the manner shown in Fig. 1 so that as the Him is tightened by the increasing winding tension. the arm 1 will be drawn toward the center oi the mu tension of the thereby relieve the other reasons it will obviously he no longer wound on the reeh and as the mechanism and reel are inclosed the operator will. not he aware of the lei of the winding mechanism until a soil. length of film is piled nplo clog the machine or otherwise interfere with the exhhhition.

The purpose of said invention is to in licate to the operator the progr of the winding and to give notice to the opcratmr by suitable signal shm'lldthe iilni hre lt. The normal position of the operr'oi the side of the machine toward win.) the magazine doors open. It is therefore nee/es viy izo provieie th signal device on this side of themachiue. The .signa] device comprises av diai o: flange disk 1.2 attached to the outer face of ihe magazine iiooi: 1 3 is eenter. At the center of the dial a pres-Mm for a spindle 1. which ow" thi'owi'h the door and has attached 1 1 M to its IIEIFQI eno a r-law or ciuteh member 1a adapted to engage the dog 8 when A closed. as shown in. Fig. 4-, (311 1e and of the shaft and in the flange disk bar H3 is attached and pivoted to e opposite emisof the CI'OSS bar are shoes iavinp; pointed ends Wh h are normally cieaioi. the inner suii'iiaee of tho flange This SlllflCQ provided its eircumiereuco with fine seras shown more pariicuiaiiy in 1:? The 1 '5 1 which is of the winding i" ii 'hest speed higher. *ehau the speed a auy of 01 the film. The tension. the spring so adjusted that the Wntriiuga] force oi" the arms 17 wiii he van 12 1; to one me the tension oi? the "a on the red is rotating ii'eeiy as (iiiSnLJfl-i l. are thrown W hen the arms I! outward by she excessive speed of their shaft the point-ed ends will scrape over the serra- $710115 18 producing a sound not uuiike a ampuign rattle, which will at. once at u'aoi. the operators attention so that he may 4-" stop the machine or otherwise Z'QIRCLLV the ciiiiieui'ay As soon as ihe speodoi the reel A a reduced to nonnaL the spring 19 the arms 17 inward out of eoutact- Wi ilil the E-ll'l'li i ous.

i have described. my improwzdsignai device in C(jnnGCoiIm with the most improved eontroiieci driving mechanism of the low st reei but it is obvious that it may he need to advantage in connection with other forms of reel driving mechanism. The most, simple form 075 iri ving i'nechaniszn now in i" an ordinary slip clutch through W" ieh the fi shaft is driven from a eonshaniaiy rota-tiny pulley retaking at a doestant sjieed higher than the maximum Wind inf}; of the reel. In this form of: driw magazine eioseci driving en-' day off-Janamy 1914i.

mosey? ing mechanism the tension the driving reel. is'not increased by the breakage of the film, but the breaking of the film leaves the reel free obviously to be driven at the speed of the pulley and causes the sounding signal "to be operated.

Having thus described my invention, What 1 claim and iiesire to secure by Let'- ters Patent is:

1. The combination of a magaziue fog. moving picture films having a. door adapted to close 'itho magazine, a winding; reel with in the magazine and indicator carried by the door and comprising a shai rotatably mounted in the door and having a driving connection with the winding ieei when the door is closed. anti 3, speed controlled signal operaied by said shaft to "produce signal when thespeed of said. shaft exceede a predetermined maximum.

2. The combination of a magazine for moving picture films having a (1001' adapteci to dose the magazine, a winding reel with in the magazine, an indieatoy carried by the door of the maga me and having;- operative connectioiu with the fwiuding reel when, the door is closed, saiii indicator comprising a speed oonti'olieti signai device eiiapteci 50 operate to produce a signal when sairi; winsfing reel exceeds a predetermined speed= 3. The combineiion of a magazine for moving" picture films, a Wiuing reei Within said magazine, a tension drive for said reeh and an indicator Without said magazine having operahive connection with said reeh said indicator comprising a speed cow troiled signai CiQX iCG uciapted'o operate to produce. an alarm signal "when said winding reel exceeds a, pi'edeiermiiieci. speed.

Theeombinatiou of a, magazine for moving piekure iihus, having a iil'kfiffldtlpfifiii $0. ciose the magazima a winding reei shaft within the magazine a tension drive for such shaft, an inclicator carried by the door of the magazine and having driving connoction with said when the door is closed,

said indicator comprising a rotary member having a part radiaiiy iiuovahle through centrii'ugal action and a, sounding member ,aiijaceut' said rotary member and adapted i0- be engaged by said ZZ'Ziiiiiiifi" movable part when said reel exceeds a, predetermined spefin j V Signed; at New York in the county of 1% BW York and State of New York this 20th NICHOLAS FOWER, VJitu esses u izwon LL MoELuoY, W. B. Moa'rou. 

